Ultrasonic relaxation of TeWB glasses at low temperatures
نویسندگان
چکیده
The ultrasonic relaxation of tellurite glasses xB2O3 – 70 TeO2 (30 x) WO3, 0 ≤ x 30 mol% was investigated by measuring the attenuation (αL) in these thermal range 140–300 K (T) at various frequencies (f). Some characteristics can be obtained from relation αL–T, such as average activation energy (Ep) and attempt frequency (f0). variables Ep f0 are a function B2O3 content. Moreover, αL–T accounts well for oscillations oxygen atoms process. Such physical process is originated transmitting to oscillating dual-well potential. inspected model named central force one. subtracted different
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ژورنال
عنوان ژورنال: Results in physics
سال: 2021
ISSN: ['2211-3797']
DOI: https://doi.org/10.1016/j.rinp.2021.104336